Hose-clamp.



F P. DAR CY. HOSE CLAMP.

APPLlCATION FILED MAR. 4.1915.

1,155,646. j Patented Oct. 5, 1915.

v ATTORNEK? FRANK'P. 'IJARCY, F KALAMAZOO, MICHIGAN.

HOSE-CLAMLR '1' '0 all it may concern Be it khown that'I, FRANK P.DARCY, a citizen of the United States, residing at Kalamazoo, in thecounty of Kalamazoo and State of. Michigan, li aye invented certain newand useful Improvements in Hose- (llainps, of which the following is aspecitication.

This invention relates to improvements in hose clamps.

The main objects ofthis invention are, to provide an improved hose clampin which the body of the clamp contacts with the hose throughout itscircumference, the clamp body being formed integrally of sheet metal.

A further object is to provide a hose clamp in which the nut ispermanently secured to the clamp thereby facilitating the manipulationof the clamp in applying or removing it.

Further objects, and objects relating to structural. details, willdefinitely appear from the detailed description to follow.

\ I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and p0inted out in the claims.

A, structure which. is a preferred embodiment of my invention is clearlyillustrated in the accompanyingdrawing forming a part of thisspecification, in which:

Figure I is a detail side elevation of a hose clamp embodying .thefeatures of my invention mounted upon a piece of hose; Fig. II is anedge view of my improved clamp. Fig. III is a transverse section throughmy improved clamp on a line corresponding to line 3- 3 of Fig. I. Fig.IV is a perspective view of the clamp with the bolt re-- moved andtheconvolutions of the clamp separated so as to better show the structureof the clamp. Fig. V is a plan view of the blank of my improved clamp.Fig. V1 is a detail transverse section on the line corresponding to line6-6 of Fig. 1, showing the engagement of the lugs on the end portionswith the guide groove in the body of the clamp.

In the drawing. similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

My improved clamp comprises an integral Specification of Letters Patent.

Patented Oct. 5, 1915.

Application filed March 4, 1915. Serial No. 12,197.

body member formed of sheet metal and comprising a central portion 3,end portions 4, the end portions and the central portion being ofsubstantially the same width, and narrow portions 5 between the centraland end portions, the narrow portions being substantially one half thewidth of the central and end portions and adapted to lie edgeto edge andwith the central Dortion forming a complete convolution with the endportions 4 overlapping or resting upon the central portions 3. The endportions 4 terminate in out turned ears 6 having side flanges 7 whichextend onto the end portions 4,-constituting bracing or stiffeningmembers for the ears. The flanges 'Z of one ear are provided with lugs 8which are folded against the rear side of the nut 9 and the ear isprovided with a lug 10 on its end folded against the upper edge of thenutthereby securing the nut to the clamp with its hole 11 registeringwith the hole 12 in the ear. The other ear has a hole 13 adapted toreceive the bolt 14.

The central portion 3 is provided with an integral longitudinal-bead 15providing an external longitudinal groove 16. The end portions havebead-like lugs 17 struck in wardly therefrom to engage the groove 16 sothat when theclamp is drawn up on-a hose the end portions cannot sliplaterally. This holds the narrow portions 5 edge to edge. The internalbead is embedded in the hose and there tendency for the hose to squeezebetween the nar row portions 5, thus securing a very effective clampingaction on the hose. By securing the nut as shownthe hose canbe'conveniently applied or taken ofi' in situations which prevent easymanipulation when the nut is free from the clamp.

Having thus described my invention, What I claim as new and desire tosecure by Letters Patent, is: e e

1. A hose clamp comprising an integral sheet metal body having a centralportion and end portions of substantially the same width and diagonallyopposed portions between the central and end portions of sub-'stantially one half the width of the central and end portions andadapted to lie edge to edge and with the central portion forming acomplete convolution, the end portions overlapping the central portionand terminating in out turned bolt ears, the central portion having alongitudinal bead providing an internal longitudinal rib and an externallongitudinal groove, the end portions having lugs therein engaging saidgroove, and a bolt arranged through said ears.

. 2. A hose clamp comprising, a sheet metal body having integral outturned perforated ears at its ends, said ears having rearwardly turnedflanges at'their sides, the flanges being extended onto the body wherebythe ears are braced, a nut disposed between the flanges of one ear,such-flanges having lugs on their edges folded onto the outer side ofthe nut, there being a lug on the end of said ear folded upon the upperedge'of the nut whereby the nut is secured to the ear, and a boltdisposed through the, other ear to coact with said nut.

In witness whereof, I have hereunto set my hand and seal in the presenceof two witnesses.

FRANK P. DARCY. L. 5.] Witnesses: j

LUELLA'G. GREENF'IELD, MARGARET L. GLASGOW.

